#include "usart.h"

void usart1_init(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	USART_InitTypeDef USART_InitStructure;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
  
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_Init(GPIOA, &GPIO_InitStructure);
	
	USART_InitStructure.USART_BaudRate = 9600;           
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;         
  USART_InitStructure.USART_StopBits = USART_StopBits_1;        
  USART_InitStructure.USART_Parity = USART_Parity_No;             
  USART_InitStructure.USART_Mode = USART_Mode_Tx;               
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; 
	USART_Init(USART1,&USART_InitStructure);
	
	USART_Cmd(USART1,ENABLE);
}
void usart1_sendchar(u8 data)
{
	while(!USART_GetFlagStatus(USART1,USART_FLAG_TXE));
		USART_SendData(USART1,data);
}
void usart1_sendstring(u8 *stringdata)
{
	int i=0;
	while(stringdata[i] != '\0')
	{
		usart1_sendchar(stringdata[i]);
		i++;
	}
}










